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November 08, 2025, 05:20:05 am
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Author Topic: My 1/2 question thread  (Read 913 times)  Share 

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WhoTookMyUsername

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My 1/2 question thread
« on: June 19, 2011, 05:40:00 pm »
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How do you tell the difference between a square root function and a edit: semi - circle?


couldn't be both a edit: semi - circle AND a squareroot function?


edit 2: why am i so dumb?
« Last Edit: June 19, 2011, 05:45:33 pm by Bazza16 »
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b^3

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Re: My 1/2 question thread
« Reply #1 on: June 19, 2011, 05:40:58 pm »
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its only the bottom half of the circle because of the negative in front. if it was plus or minus in front then it would be a whole circle.
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b^3

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Re: My 1/2 question thread
« Reply #2 on: June 19, 2011, 05:46:02 pm »
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its not like your normal square root function like say because it is under the bracket and not . it changes into a different group of functions.
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WhoTookMyUsername

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Re: My 1/2 question thread
« Reply #3 on: June 19, 2011, 06:41:19 pm »
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What does solve over R refer to?
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Greatness

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Re: My 1/2 question thread
« Reply #4 on: June 19, 2011, 06:53:41 pm »
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Any real numbers
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Re: My 1/2 question thread
« Reply #5 on: June 19, 2011, 08:04:01 pm »
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In answer to your "edit2: y am i so dumb?" ---> too much bio. Grats on your obliteration of u3.
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Re: My 1/2 question thread
« Reply #6 on: June 19, 2011, 08:20:46 pm »
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The principal square root function is just , in regards to your question, it is just definitions, there's no special 'rule' that says has to be a semi circle, it is just defined to be.
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Re: My 1/2 question thread
« Reply #7 on: June 25, 2011, 05:52:31 pm »
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Quote from: Bazza16 on June 25, 2011, 01:48:43 pm
can anyone clarify in simple english what the log function is?

log = logarithm

Quote from: Wikipedia
The logarithm of a number is the exponent by which a fixed number, the base, has to be raised to produce that number.
^Pretty simple definition actually


Or you could define a log (eg. ) as the inverse function of an exponential (eg. ).
(source: Wolfram)


both definitions are pretty simple english, and a couple of the first few hits on Google :P

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